Siemens SINAMICS G130 - Page 429

Functions, monitoring, and protective functions
9.2 Drive functions
Inverter chassis units
Operating Instructions, 07/2016, A5E00331449A
429
Adapting the pump, fan, or compressor characteristic
The 5 interpolation points of the pump, fan, or compressor characteristic are entered using
parameters p3320 to p3329. This characteristic can be configured individually for each drive
data set.
Table 9- 6 Interpolation points of the pump, fan, or compressor characteristic
Interpolation point
Parameter
Factory setting:
P: Power in %
n: Speed in %
1
p3320
P1 = 25.00
p3321 n1 = 0.00
2
p3322
P2 = 50.00
p3323
n2 = 25.00
3
p3324
P3 = 77.00
p3325
n3 = 50.00
4
p3326
P4 = 92.00
p3327
n4 = 75.00
5
p3328
P5 = 100.00
p3329
n5 = 100.00
Note
Consequences of not adjusting the pump, fan, or compressor curve
If the interpolation points of the pump, fan, or compressor curve are not adapted, the factory
setting will be used to calculate the energy saving indicator. The values of the factory setting
could then deviate from the equipment chara
cteristic and cause incorrect calculation of the
actual energy savings.
Energy saving indication
The energy saving is displayed in parameter r0041.
By setting p0040 = 1, the value of parameter r0041 is reset to 0. Parameter p0040 is then
automatically set to 0.